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- A physical and chemical selection of the raw material is necessary for the production of the cork granulates and the slices (disk).
- A treatment by a specific vapour-extraction process, with an extraction result of the halonisoles which can reach 90%.
- A unique fixation system of the cork slices above the stoppers during the moulding step, which enables a better slices conservation without using supplementary glue.
- Traditional peroxide cleaning.
- Physical and chemical controls at each production step.
- Chemical characteristics, physical performances and homogenous visual aspects.
| Characteristics |
Technical specifications |
Tolerances |
| Superior range |
Standard range |
Basic range |
|
Visual characteristics (for 125 stoppers)
|
≥ 90% of the asked choice |
< 10% of the inferior choice |
< 10% of the inferior choice |
< 10% of the inferior choice |
| Dimensional characteristics (for 32 stoppers) |
Length (mm) L ± 0,5
Diameter (mm) D ± 0,5
Ovalization (mm) ≤ 0,5
Chamfer (mm) 1,5±0,5
Slides height (mm) 5,0±0,5 |
NQA1,5 (A1/R2**)
NQA1,5 (A1/R2)
NQA1,5 (A1/R2)
NQA 4 (A3/R4)
NQA 0,4 (A0/R1)
|
NQA1,5 (A1/R2)
NQA1,5 (A1/R2)
NQA1,5 (A1/R2)
NQA 4 (A3/R4)
NQA 0,4 (A0,R1) |
NQA1,5 (A1/R2)
NQA1,5 (A1/R2)
NQA1,5 (A1/R2)
NQA 4 (A3/R4)
NQA 0,4 (A0/R1) |
| Physical and chemical characteristics |
Humidity (%) 6,0 ± 2,0 |
NQA 4 (A2/R3) |
NQA 4 (A2/R3) |
NQA 4 (A2/R3) |
| Dimensional (%) |
100%>90% |
100%>90% |
100%>90% |
| Capillarity |
No capillary ascent |
No capillary ascent |
No capillary ascent |
| Liquid watertightness (%) |
100% >1,5 bar |
100% > 1,2 bar |
100% > 0,9 bar
|
| Extraction force (daN) |
15<100%<40 |
15<100%<40 |
15<100%<40 |
| Unsticking of the slides |
No unsticking |
No unsticking |
No unsticking |
| Peroxide residual (mg/stopper) |
≤ 0,1 |
≤ 0,1 |
≤ 0,1 |
|
